On the episode that Radar tries to mail back a jeep to Iowa, Hawkeye is writing a letter home to his dad. In his writing he is talking about how cold it must be in Vermont. He always gloated about being from Crabapple Cove, Maine, right?
WRONG!! In the episode where Hawkeye's father calls BJ in the middle of the night because he thinks Hawkeye is dead, Pierce says, "We have a summer cottage in Crabapple Cove, Maine."